Bug: /pr skill uses invalid --stat flag with gh pr diff

Description

The built-in /pr skill is using gh pr diff <number> --stat, but the --stat flag does not exist for the gh pr diff command.

Steps to Reproduce

1. Run /pr command (or invoke the pr skill)
2. The skill attempts to run gh pr diff 90 --stat
3. Command fails with error

Expected Behavior

The command should use a valid flag. Possible alternatives:

• gh pr diff <number> --name-only - shows only changed filenames
• Use git diff --stat after checking out the PR branch
• Use gh pr view <number> --json files to get file information

Actual Behavior

Command fails because --stat is not a recognized flag for gh pr diff.

Valid gh pr diff Flags

According to gh pr diff --help, the available flags are:

• --name-only - Display only names of changed files
• --patch - Display diff in patch format
• --web - Open in browser
• --color - Color output

Environment

• Claude Code version: 2.1.27
• OS: macOS (Darwin 24.6.0)
• gh version: $(gh --version | head -1)

Suggested Fix

Replace gh pr diff --stat with either:

1. gh pr diff --name-only (closest equivalent)
2. Or checkout the PR and use git diff --stat